Sewing machine



FIG. 1 is a perspective view of a sewing machine with transparent covers in a closed position;

FIG. 2 is a perspective view thereof with transparent covers in an open position;

FIG. 3 is a perspective view thereof with one transparent cover in the closed position and the other transparent cover in the open position;

FIG. 4 is a front view thereof with the covers in the closed position;

FIG. 5 is a rear view thereof;

FIG. 6 is a left-side view thereof;

FIG. 7 is a right-side view thereof;

FIG. 8 is a top view thereof; and,

FIG. 9 is a bottom view thereof.

The broken line showing defines the bounds of the claimed design but does not form part of the claimed design. 

The ornamental design for a sewing machine, as shown and described. 